Archibald the Amazing, a seasoned ventriloquist approaching the twilight of his career, delivers his final act alongside his beloved puppet, Chucklehead. Following the performance, he tragically ends his own life in his hotel room. However, his dark emotions and negative energy seep into Chucklehead, turning the once harmless dummy into a sinister instrument of murder. As the night unfolds, Chucklehead unleashes a brutal killing spree, targeting a diverse group of victims—from a high school reunion attendees and hotel staff to unsuspecting bystanders—determined to leave a night of chaos and terror that no one will forget.